INTUFX™(Intumescent Fire Expandable) Legacy's intumescent material expands rapidly when exposed to heat or high temperatures. This stops fire expansion through the gaps around doors. Type #3 expands up to 30 times and Type #4 expands up to 120 times.

Customizable and specifiable
Other expansion rates and material sizes are available!

• Custom length, widths, and thicknesses are available
• Used in fire/acoustical applications
• Environmentally safe, minimal carbon footprint
• Standard color is black. Red available. Specify RD
• Optional - Laminated to wood, aluminum, steel, or other solid materials